EP 1769179 A4 20120321 - VALVE ASSEMBLY AND METHOD FOR HOT TAPPING A LINE

Title (en)

VALVE ASSEMBLY AND METHOD FOR HOT TAPPING A LINE

Title (de)

VENTILANORDNUNG UND VERFAHREN ZUM HOT TAPPING EINER LEITUNG

Title (fr)

ENSEMBLE DE VALVE ET MÉTHODE DE PIQUAGE SUR CONDUITE EN CHARGE

Publication

EP 1769179 A4 20120321 (EN)

Application

EP 05711631 A 20050122

Priority

US 2005001626 W 20050122
US 89363404 A 20040716

Abstract (en)

[origin: US2005150550A1] A valve assembly includes a valve body with an access opening in which a linearly installed but pivotally operated gate-like valve-stopping mechanism is disposed, said mechanism including a support structure or cartridge with a pivotally moveable valve-stopping element or isolator (e.g., a butterfly element). A method for hot tapping a pipeline with a valve assembly as described above proceeds by (i) connecting the valve body to a line to be tapped, (iii) connecting a hot-tapping machine to the valve body, (iv) connecting a bonnet holding the valve-stopping mechanism to the valve body over the access opening, (v) hot tapping the line, (vi) advancing the valve-stopping mechanism into the valve body interior, and (vii) disconnecting the hot-tapping machine from the valve body with the valve-stopping element pivoted to the first position where it stops fluid communications. The gate-like valve-stopping mechanism can replace a gate in an insert valve (IV) or a repair-under-pressure (RUP) valve.

IPC 8 full level

F16K 1/22 (2006.01); F16K 3/10 (2006.01); F16K 27/02 (2006.01); F16K 27/04 (2006.01); F16K 43/00 (2006.01); F16L 41/04 (2006.01); F16L 41/06 (2006.01); F16L 55/10 (2006.01)

CPC (source: EP US)

F16K 1/22 (2013.01 - EP US); F16K 3/10 (2013.01 - EP US); F16K 27/0218 (2013.01 - EP US); F16K 27/044 (2013.01 - EP US); F16K 27/045 (2013.01 - EP US); F16K 43/00 (2013.01 - EP US); F16L 41/04 (2013.01 - EP US); F16L 41/06 (2013.01 - EP US); F16L 55/1018 (2013.01 - EP US); Y10T 137/0458 (2015.04 - EP US); Y10T 137/0486 (2015.04 - EP US); Y10T 137/6011 (2015.04 - EP US); Y10T 137/6048 (2015.04 - EP US); Y10T 137/613 (2015.04 - EP US); Y10T 137/614 (2015.04 - EP US)

Citation (search report)

[XDI] US 2936778 A 19600517 - STILLWAGON CRAWFORD K
[XI] US 4460012 A 19840717 - KOUMI NOBORU [JP], et al
[X] US 6497245 B1 20021224 - TORII KATSUYA [JP]
[X] US 4562860 A 19860107 - WALTER JOHN F [US], et al
[A] US 5660199 A 19970826 - MAICHEL JEFFREY L [US]
See references of WO 2006019394A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

US 2005150550 A1 20050714; US 7021325 B2 20060404; EP 1769179 A1 20070404; EP 1769179 A4 20120321; WO 2006019394 A1 20060223

DOCDB simple family (application)

US 89363404 A 20040716; EP 05711631 A 20050122; US 2005001626 W 20050122